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Cardiogram

Cardiogram

By JOhn Lyons

Cardiogram is an Apple Watch-first utility designed for continuous, real-time heart rate monitoring without the need for manual workout sessions. It provides users with immediate visual feedback on cardio signals, including energy burn, breathing rate, and heart rate variability. The app is intended for casual health tracking and stress awareness rather than structured fitness training.

Overview · Full Intel report in progress

The App DNA

What makes this app unique?

For Casual users seeking continuous, passive heart rate monitoring and physiological insights throughout the day.

Key features

Live Heart Rate Graphstandard

Displays a smooth, scrolling visual representation of heart rate data directly on the Apple Watch.

Cardio Signal Trackingstandard

Monitors key metrics including energy burn, breathing rate, and heart rate variability.

Continuous Monitoringstandard

Focuses on passive, moment-to-moment data collection without requiring the user to start or manage workout sessions.

iPhone Companionstandard

Provides an optional secondary interface to mirror and view heart data on a larger screen.

How much does it cost?

paid

Velocity

See all version history

Who built it?

JOhn Lyons

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User Sentiment

What do users think recently?

How are ratings & reviews evolving?

App Store
1.40 · 5

Not enough recent reviews to extract reliable themes yet.

Read the full review analysis

Competition

Competitive landscape for Cardiogram

How's the Health & Fitness market?

The rivals identified

Welltory: Health, Heart Rate

By Welltory inc

Both apps target users seeking physiological insights from heart rate data, but Welltory captures a broader audience by supporting over 1,000 external devices compared to the Apple Watch-first focus of Cardiogram.

  • Welltory integrates data from over 1,000 external devices, whereas Cardiogram limits functionality to Apple Watch users.
  • Welltory provides a proprietary HRV analysis algorithm for stress and recovery, while Cardiogram focuses on passive heart rate observation.
  • Welltory includes an Echo content library for health education, a feature absent in Cardiogram.
Cardiogram vs Welltory: Health, Heart Rate
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Unlock the head-to-head verdict: where this rival wins, and where it loses.

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The Analyst's Read

Key takeaways for Cardiogram

Where is it heading?

Bottom line

Cardiogram is a specialized, paid utility that prioritizes passive, continuous heart rate observation over active fitness tracking.

Report last updated

Disclosure: Independent intel to help mobile builders succeed.

AI-powered analysis with automated quality gates, built from publicly available sources. Marlvel.ai is not affiliated with, endorsed by, or sponsored by Cardiogram, its developer, the app publisher, Apple, or Google Play. All trademarks, logos, and screenshots referenced remain the property of their respective owners.

Cite this report

Marlvel.ai. “Cardiogram Intelligence Report.” Updated Apr 23, 2026. https://marlvel.ai/apps/com-cardiome

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